688 THE UNIVERSE. 



It is curious to see the habits of animals told thus by an 

 examination of their respiratory canals. 



But everywhere, whether we examine the air or the in- 

 nermost organs of animals, we only find a very insignifi- 

 cant quantity of those eggs or seeds with which the pan- 

 spermists, we repeat, nevertheless maintain that the air is 

 loaded. 



